Protanopia or Red-Green Color Blindness

Protanopia is a one of three type of color vision dichromacy. People affected with protanopia are unable to distinguish certain colors from one another. people are completely unable to distinguish colors not actually to much, While you usually heard about the color blind. People with protanopia will hard to distinguishing between red and greens, these colors look sort of grey rather than the color red or green.

Protanopia caused by an unequal recombination in the gen passed on from the parents to their children. Patients with protanopia, either have faulty long-wavelength cones (L-cones). The latter of protanopia is called red-dichromacy.

In other source, they are wrote definition about protanopia :
Protanopia: The limited ability to see all primary colors to seeing blue and yellow.

Protanopia: lowered sensitivity dichromacy characterized to long wavelengths of light resulting in limited capability to distinguish red and purplish blue.

Different types of Red-green color blindness splitted by two: Whereas those affected by protan color blindness have limited ability to sensitive red light, deuteranopia or deuteranomaly (other type of red-green color blindness) have related to sensitive on green light.

Gender     Protanopia     Protanomaly
Male        1.01%            1.08%
Female     0.02%            0.03%

Ratios by Gender

The Types of Colour Blindness

There are several types of inherited colour blindness. A big misconception in many people think anyone labeled as "colorblind" only sees the world in black and white - like watching on television a black and white movie. This is a misconception and not true at all. There are many different types of color blindness or be more correctly called colour vision deficiencies. Extremely rare to be totally color blind (monochromacy - complete cannot distiguish of any color sensation).

Monochromacy (achromatopsia)

Patients with symptoms of monochromatic vision cant see no colour at all and their world consists of different shades from black to white, like only seeing movie at black and white television. Achromatopsia is extremely rare happens, occurring only in approximately 1 person in 33,000 and the symptoms from it can make your life very difficult. Someone with achromatopsia will need a rehabilitation to wear dark glasses inside in normal light conditions.

Monochromacy (achromatopsia)

Dichromacy

People with dichromatic colour vision have only able to see two types of colour. they have a total absence of function of one colour type. Lack of ability to see many different colour is the easiest way to explain and find this condition but in actual fact happened on people is it a specific section from the light spectrum which cannot be perceived sensation.

Dichromacy

Anomalous Trichromacy

Anomalous Trichromacy

People with anomalous trichromats or also known as ‘faulty’ trichromatic vision will be colour blind to some extent. The only way to explain this problem is, if we example one people have '4 ability' to see colour, people with trichromatic condition all of their three "ability" types are used to perceive light colours but one type of "ability" will perceives light slightly out of alignment, so that there are many different types of effect produced depending which "ability" type is ‘faulty’

What is A Color Blindness

Color-blindness is that the inability to differentiate the differences between certain many colors. This condition results from an absence of color-sensitive pigment in the cone cells of the retina, the nerve layer at the rear of the eye.

Most color vision issues are inherited and are present at birth. approximately 1 out of 11 males and 1 out of 200 ladies in the world are color blind. There are different causes of people getting color blindness. For the majority of people with deficient color vision the condition is genetic and has been inherited from their mother, although some people can become color blind as a results of other diseases like diabetes and multiple sclerosis (MS) or they acquire the condition over time due to the medication, aging process, etc.

on the left is a color picture that is seen by people with normal vision, while on the right is what will be seen by people with color blindness disease.

What does a people with color-blind see?

A person with color-blindness has trouble seeing red, green, blue, or mixtures of those colors. the most common type is red-green color-blindness, wherever red and green are seen as the same color.

The most people with color blind are able to see things as clearly, but they unable to fully see the different colour of green, red or blue light. There are many different types of color blindness and there are have one extremely rare cases where people with this disease are unable to see any colour at all.

The common form of colour blindness is known as red/green colour blindness and most patients with colour blindness suffer from this. For example, a red/green colour they are will confuse a blue and a purple because colour-blind people can’t ‘see’ the red element of the colour purple.

Simple Test For Color Blindness

Here are the correct answers:

Plate 1

People with normal color vision will see the number 74.

Plate 2

People with normal color vision will see the number 6.

Plate 3

People with normal color vision will see the number 29.
People with red-green deficiencies will see the number as 70.

and for people with total color-blindness can not see any number.

Plate 4
People with normal color vision should not be able to read any number.
Most of people with red-green deficiencies will see the number 5.
and for people with total color -blindness can not see any number.